Maxillary Incisors

What is the universal number for the maxillary right lateral incisor

7

What is the universal tooth number for the maxillary right central incisor

8

When does eruption occur for the permanent maxillary central incisors

7-8 years

List general crown features of the maxillary central incisors

Incisal ridge

incisal angles

cingulum

marginal ridges

lingual fossa

List the specific crown features of the maxillary central incisors

Widest crown mesiodistally

Greatest CEJ cruve and height of contour

Pronounced distal offset cingulum

marginal ridges w/ wide and deep lingual fossa

Where is the height of contour located on the maxillary central incisors

Cervical third

Where is the mesial contact located on the maxillary central incisors

Incisal third

Where is the distal contact located on the maxillary central incisors

Junction of incisal and middle thirds

How do you distinguish the maxillary right and left central incisors from one another

Sharper mesioincisal angle and rounder distoincisal angle

More pronounced mesial CEJ curvature

What are the general root features of the maxillary central incisors

Single root

What are the specific root features of the maxillary central incisors

Triangular on cervical cross-section

Overall conical shape

No proximal root concavities

Rounded apex

What is the universal tooth number of the maxillary left central incisor

9

What is the universal tooth number of the maxillary left lateral incisor

10

When does eruption of the permanent maxillary lateral incisors occur

8-9 years

List the general crown features of the maxillary lateral incisors

Incisal ridge

incisal angles

cingulum

marginal ridges

lingual fossa

List specific crown features of the maxillary lateral incisors

Greatest crown variation

Like smaller central

Pronounced lingual surface

centered cingulum

Prominent marginal ridges

Where is the height of contour located on the maxillary lateral incisors

Cervical third

Where is the mesial contact located on the maxillary lateral incisors

Incisal third

Where is the distal contact located on the maxillary lateral incisors

Middle third

How do you distinguish the maxillary left lateral incisor from the maxillary right lateral incisor

Sharper mesioincisal angle

Rounder distoincisal angle

More pronounced mesial CEJ curvature

List the general root features of the maxillary lateral incisors

Single root

List the specific root features of the maxillary lateral incisors

Oval on cervical cross section

Same or longer than central but thinner

Overall conical shape

No proximal root concavities

Root curves distally with sharp apex